<template>
  <div class="swiper-container" ref="cur">
    <div class="swiper-wrapper">
      <div
        class="swiper-slide"
        v-for="(prc, index) in skuImageList"
        :key="index"
      >
        <img :src="prc.imgUrl" 
        :class="{active:heightLight === index}"
        @click="clickPic(index)"
        />
      </div>
    </div>
    <div class="swiper-button-next"></div>
    <div class="swiper-button-prev"></div>
  </div>
</template>

<script>
import Swiper from "swiper";
export default {
  name: "ImageList",
  data(){
     return {
       heightLight:''
     }
  },
  props: {
    skuImageList: {
      type: Array,
      default: () => [],
    },
  },
  watch: {
    skuImageList() {
      this.$nextTick(()=>{
        new Swiper(this.$refs.cur, {
        // 每页轮播数量
        slidesPerView: 2,
        // 每次切换几个图片
        slidesPerGroup:2,
        // 如果需要前进后退按钮
        navigation: {
          nextEl: ".swiper-button-next",
          prevEl: ".swiper-button-prev",
        },
      });
      })
    },
  },
  methods:{
    // 点击图片高亮
    clickPic(index){
      this.heightLight === index?(this.heightLight = ''):(this.heightLight = index)
      //兄弟间通信
      this.$bus.$emit('prcIndex',index)
    }
  }
};
</script>

<style lang="less" scoped>
.swiper-container {
  height: 56px;
  width: 412px;
  box-sizing: border-box;
  padding: 0 12px;

  .swiper-slide {
    width: 56px;
    height: 56px;

    img {
      width: 100%;
      height: 100%;
      border: 1px solid #ccc;
      padding: 2px;
      width: 50px;
      height: 50px;
      display: block;

      &.active {
        border: 2px solid #f60;
        padding: 1px;
      }
    }
  }

  .swiper-button-next {
    left: auto;
    right: 0;
  }

  .swiper-button-prev {
    left: 0;
    right: auto;
  }

  .swiper-button-next,
  .swiper-button-prev {
    box-sizing: border-box;
    width: 12px;
    height: 56px;
    background: rgb(235, 235, 235);
    border: 1px solid rgb(204, 204, 204);
    top: 0;
    margin-top: 0;
    &::after {
      font-size: 12px;
    }
  }
}
</style>